By Auxiliary Brushes Diametrically Opposed Or 180 Electrical Degrees Apart Patents (Class 322/92)
  • Patent number: 5675603
    Abstract: A laser device incorporates a rectangular multi-mode beamsplitter waveguide connected at one end to a retro-reflecting mirror. The beamsplitter waveguide is connected at a second end to an output coupling waveguide and a reflection coupling waveguide. The reflection coupling waveguide is terminated by a second retro-reflecting mirror. Radiation produced within the device is reflected by the mirror and coupled to the two coupling waveguides in a manner such that a partially reflecting mirror is not required at an output to the device.
    Type: Grant
    Filed: January 19, 1996
    Date of Patent: October 7, 1997
    Assignee: The Secretary of State for Defence in her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland of Defence Evaluation and Research Agency
    Inventor: Richard M. Jenkins
  • Patent number: 4875215
    Abstract: This invention relates to a modular, interconnecting component optical fibre based communication system with coherent and incoherent optical signals from local area networks being converted into laser signals at either end of long-haul land or submarine cables incorporating laser amplifier repeaters, connecting said networks. The invention can accommodate both amplitude and frequency modulation signal transmission and detection. The invention has applications in high data transfer rates between local, national and international communication centers and can be utilized in vehicles where system weight and data rate capabilities are important.
    Type: Grant
    Filed: August 12, 1988
    Date of Patent: October 17, 1989
    Assignee: Australian Electro Optics Pty. Ltd.
    Inventor: John L. Hughes